Exceptionless captures exceptions, logs, and custom events from .NET and web apps, with a free tier, paid hosted plans from $15/month, and a self-hosted option.
Exceptionless is an error tracking and event logging service originally built around the .NET ecosystem, with support for ASP.NET, Web API, WPF, and console applications, alongside JavaScript and other clients. It collects unhandled exceptions, log messages, and custom events from an application and organizes them into a searchable dashboard so developers can see what's actually going wrong in production.
The project is dual-natured: it's distributed as open-source software that teams can run on their own servers, and it's also offered as a hosted SaaS product with paid plans for teams that would rather not manage the infrastructure themselves. This gives adopters a choice between a fully managed service and full control over where their error data lives.
Exceptionless automatically groups similar errors together so a single bug doesn't flood the dashboard with hundreds of near-duplicate entries, and it tracks how often each issue occurs over time. Search functionality lets developers filter events by exception type, message, tag, or custom property to isolate the errors that matter.
The platform can send notifications when new errors appear or when an existing issue's occurrence rate spikes, and it integrates with Slack, generic webhooks, and Zapier so alerts reach the tools a team already uses. Because it also logs custom events and feature usage, teams can use it for lightweight product analytics alongside pure error tracking.
Exceptionless offers a free hosted plan covering one project, one user, 3,000 events per month, and three days of retention, with no premium features enabled. Paid hosted plans start at 15 dollars a month for the Small tier, which raises limits to five projects, ten users, 15,000 events per month, and 30 days of retention, plus premium features like search, error notifications, and third-party integrations.
Higher tiers scale up from there, Medium at 49 dollars a month, Large at 99 dollars a month, Extra Large at 199 dollars a month, and an Enterprise tier at 499 dollars a month for up to 3,000,000 events monthly with unlimited projects and users. Teams that would rather avoid a recurring hosted bill can self-host the open-source version instead, trading a subscription fee for their own infrastructure and maintenance costs.
Yes, there's a free hosted plan covering one project, one user, and 3,000 events per month with three days of retention. Paid plans start at 15 dollars a month for higher limits and premium features.
Yes, the underlying codebase is open source, so teams can deploy and run Exceptionless on their own servers instead of paying for the hosted SaaS.
It was originally built around the .NET ecosystem, including ASP.NET and Web API, but also offers clients for JavaScript and other application types.
Higher hosted tiers exist specifically to accommodate more events per month, ranging up to 3,000,000 events on the Enterprise plan.
Yes, premium plans include integrations with Slack, generic webhooks, and Zapier for routing error alerts.